Home / 21,405,237-29,539,227.06-12,820,533

Finding the Fourth Proportional to 21,405,237, 29,539,227.06 and 12,820,533

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Solution

The fourth proportional to 21,405,237, 29,539,227.06 and 12,820,533 is: 17,692,335.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,405,237 : 29,539,227.06 = 12,820,533 : x
  2. Step 2: Convert to fraction form
    21,405,237/29,539,227.06 = 12,820,533/x
  3. Step 3: Cross multiply
    21,405,237x = 29,539,227.06 × 12,820,533
  4. Step 4: Simplify right side
    21,405,237x = 378,708,635,317,222.94
  5. Step 5: Solve for x
    x = 378,708,635,317,222.94/21,405,237
  6. Step 6: Final answer
    x = 17,692,335.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.